I'm anxious to get a child trailer so that I can start bringing my 1.5 year old twins on rides with me and the wife. I've spent the better part of the afternoon researching online, and then checking craig's list and ebay for Burley double child trailers, specifically the d'lite model. So far not much luck locally. Any other ideas for finding one of these items for a few hundred bucks off retail price?

Just keep looking. Burley trailers are *constantly* on my local Craigslist. And don't limit yourself to a specific model. If you're going to get a used one really cheap anyhow, it probably doesn't matter all that much if it doesn't last you 10 years. ;-)

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Knows the weight of my bike to the nearest 10 pounds.

I like the older Burley CO OP made trailers , they have a tube all the way around it and the wheels are supported on both ends, common front hub.
post Co Op buyout after bankrupcy, trailers were sent to be made off shore , Philippines, single side hubs ..

the older ones live again when the kids out grew them, as Utility trailers ..
the surrounding rail makes messing up a wheel banging into stuff really unlikely as it is not exposed.
I have a 'Flat bed'. its a Kid trailer with a flat cargo space and low side rails.
was 20" wheels now they are 16" single sided

as well as a bunch of other brands of equally exceptionally good trailers: Chariot, blah blah blah.

i like Burley (i live in Eugene, OR where they are made), but in the used market you really need to keep your options open.

They're not all "equally exceptional".

Read some reviews on Consumer Reports. Some trailers were reported to have a propensity to flip over in turns, for example.

About 8-9 years ago, when we bought a trailer, Yakima and Burley were head and shoulders better than the rest. Today? I'm not in the market to buy, so I don't know and I'm not digging through the intertubez to find out. But I suspect that there are similar differences today as there were then.

Nope, only the ones that *are* equally exceptional. My Chariot is as good or better than the current crop of Burleys, but it's incrementally better and somewhat purpose suited. They are both equally safe. There are numerous other trailer companies that also offer safe and effective trailers. The moral: in the used market keep your horizons more open. The second moral: A LOT has changed in 8-9 years; e.g., Burley's are outsourced to Asia.